He needs help or he scared or he feels uncomfortable.
Answer: ecosystem
Explanation:
An ecosystem is a community involving several groups of organisms co-existing in the same place.it involves the interaction between the community and it's non living environment.in this Georgia backyard,the bees,lizard ,works etc are the biotic or living part of the ecosystem that co-exist together
Your respiratory system prevents harmful substances from entering the lungs by using: .Mucus produced in the trachea and bronchial tubes to keep air passages moist and aid in intercepting dust, bacteria and other substances; The sweeping motion of cilia (small hairs in the trachea) to keep air passages clean
The strongest pulse location was the Radial Pulse. The weakest pulse was the Dorsalis pedis